Control registers

Intrinsics to set,get and clear the control registers. More...

Overview

Intrinsics to set,get and clear the control registers.

These registers have values by default afte reset.

Control registers:

Register	Width	Initial	Meaning
crSat - Saturation Mode	2	0	0 – No saturation; truncation of MSBs
		0	1 – Perform saturation
		0	3 – Perform symmetric saturation
crRnd - Rounding Mode	4	0	Rounding modes
crFPMask	5	0	Flag mask for floating point operations
crF2IMask	5	0	Flag mask for float to int conversions
crF2FMask	5	0	Flag mask for int to float conversions
crMCDEn	1	1	MCD output enable
crSCDEn	1	1	SCD output enable
crVaddSign	1	0	Sign of dynamic VADD operations
crUnpackSign	1	0	Sign of dynamic unpack operations
crPackSign	1	0	Sign of dynamic pack operations
crUPSSign	1	0	Sign of dynamic UPS operations
crSRSSign	1	0	Sign of dynamic SRS operations

Miscellaneous control bits
Control saturation mode
unsigned int	get_satmode ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
void	set_satmode (unsigned int val)
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
void	set_sat ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
void	set_symsat ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
void	clr_sat ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_sat ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_symsat ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_rnd ()
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
void	set_rnd (unsigned int val)
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_fpmulmac_mask ()
	Floating point exception flag mask for multiply/accumulate instructions. More...
void	set_fpmulmac_mask (unsigned int val)
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_fp2int_mask ()
	Floating point exception flag mask for float to integer conversions. More...
void	set_fp2int_mask (unsigned int val)
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...
unsigned int	get_fp2bf_mask ()
	Floating point exception flag mask for float to bfloat16 conversions. More...
void	set_fp2bf_mask (unsigned int val)
	Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values. More...

Function Documentation

clr_sat()

void clr_sat

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

get_fp2bf_mask()

unsigned int get_fp2bf_mask

(

)

Floating point exception flag mask for float to bfloat16 conversions.

get_fp2int_mask()

unsigned int get_fp2int_mask

(

)

Floating point exception flag mask for float to integer conversions.

get_fpmulmac_mask()

unsigned int get_fpmulmac_mask

(

)

Floating point exception flag mask for multiply/accumulate instructions.

get_rnd()

unsigned int get_rnd

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

get_sat()

unsigned int get_sat

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

get_satmode()

unsigned int get_satmode

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

get_symsat()

unsigned int get_symsat

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_fp2bf_mask()

void set_fp2bf_mask

(

unsigned int

val

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_fp2int_mask()

void set_fp2int_mask

(

unsigned int

val

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_fpmulmac_mask()

void set_fpmulmac_mask

(

unsigned int

val

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_rnd()

void set_rnd

(

unsigned int

val

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_sat()

void set_sat

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_satmode()

void set_satmode

(

unsigned int

val

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.

set_symsat()

void set_symsat

(

)

Control for rounding mode (for Shift-Round-Saturate). See Rounding modes for possible values.